Chancroid is a sexually transmitted disease caused by the organism Haemophilus ducreyi – a bacteria. The hallmark of this disease is an exquisitely painful ulcer on the genitals.
Chicken pox (also called varicella) is a classically childhood skin disease that is caused by the varicella zoster virus, the same virus that causes shingles in adults.
The word “nevus” is a synonym for the word “mole”. However, an epidermal nevus is a special kind of mole that does not look like the typical small moles almost every person has.
Cowden syndrome is a very rare genetic disease classically manifesting as the appearance of multiple hamartomas – a benign (but still problematic) kind of tumor – both on the skin and within internal organs.